1200120112 has 20 divisors (see below), whose sum is σ = 2400241216. Its totient is φ = 580703040.

The previous prime is 1200120109. The next prime is 1200120113. The reversal of 1200120112 is 2110210021.

1200120112 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1200120113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1209303 + ... + 1210294.

Almost surely, 2^1200120112 is an apocalyptic number.

It is an amenable number.

1200120112 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200120112 is a wasteful number, since it uses less digits than its factorization.

1200120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419636 (or 2419630 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1200120112 is about 34642.7497753859. The cubic root of 1200120112 is about 1062.6940230125.

Adding to 1200120112 its reverse (2110210021), we get a palindrome (3310330133).

The spelling of 1200120112 in words is "one billion, two hundred million, one hundred twenty thousand, one hundred twelve".